There are other vapes that fulfill those issues in various ways, but to me it seems absolutely reasonable not to want the Fierce if you have and are happy with the Fury... After all a Fury 3 could still come out some day, but the Fierce does resolve quite a few issues many have with the Fury if not necessarily perfect for everyone. While I have plenty of 18650 vapes and batts myself, I still think the dedicated batteries here sound good based on the reasoning and prices given. I highly doubt a screwdriver is needed to swap batteries from the looks of it, but it also seems like battery life will be quite long as it may not even be needed for normal use to swap on the go... I do like that you have the option of using it as is, replacing when it dies some day, OR buying a couple or more to swap and charge. The larger bowl also gives more flexibility allowing you to pack more when desired (with groups) OR use dosing capsules/screens to load less (it may also work fine with less loaded regularly as it does in the Fury) so that too seems like a win along with the more glass pathway. Yes this does raise more issues of hot glass with breaking potential, but I am used to that trade for flavor purity at least. As always I would want less silicone and plastic regardless. I think the one thing I really would've liked to see in the Fierce that we didn't get was for it to be taller than the Fury. And that is purely to avoid the potential for pinky blocking the air intake (a big newbie issue) lol Maybe for the Fury 3 and Fierce 2 or eventual new model!